Note: The common European, or gray, partridge ({Perdix
cinerea}) and the red-legged partridge ({Caccabis
rubra}) of Southern Europe and Asia are well-known
species.
[1913 Webster]

2. Any one of several species of quail-like birds belonging
to {Colinus}, and allied genera. [U.S.]
[1913 Webster]

Note: Among them are the bobwhite ({Colinus Virginianus}) of
the Eastern States; the plumed, or mountain, partridge
({Oreortyx pictus}) of California; the Massena
partridge ({Cyrtonyx Montezum[ae]}); and the California
partridge ({Callipepla Californica}).
[1913 Webster]